Math Terms

3. A 3D shape with two identical, parallel ends (bases) and flat sides.
8. A 3D shape with a polygonal base and triangular faces that meet at a point (apex).
10. A polygon with eight sides.
12. A polygon with four sides and four angles.
17. A triangle with all three sides of equal length.
21. The line segment where two faces of a solid figure meet.
22. A quadrilateral with two pairs of parallel sides.
24. A 3D square shape with 6 equal square faces, 12 edges, and 8 vertices.
25. A 2D shape with four right angles and opposite sides that are parallel and equal.
26. A special rectangle with all four sides of equal length.
27. The distance around the edge of a circle.
28. Two lines or line segments that intersect at a right angle (90°).

1. A triangle with at least two sides of equal length.
2. A closed 2D shape made up of straight lines.
4. Two lines that are always the same distance apart and never meet.
5. The distance from the center of a circle to its circumference.
6. A triangle with all three sides of different lengths.
7. The corner point where two or more line segments meet (plural: vertices).
9. Angle An angle of exactly 90°.
11. An angle greater than 90° but less than 180°.
13. A straight line passing from one side of a circle to the other through its center; twice the length of the radius.
14. A polygon with six sides.
15. A polygon with five sides.
16. A perfectly round 3D shape where every point on its surface is the same distance from its center.
18. An angle less than 90°.
19. A 2D shape with four equal sides and opposite sides parallel.
20. A flat surface of a three-dimensional shape.
23. A quadrilateral with at least one pair of parallel sides.